Which of the follwing characteristies of electrons determines the current in a conductor?

Options

A. Drift velocity alone
B. Thermal velocity alone
C. Both drift velocity and thermal velocity
D. Neither drift nor thermal velocity.

Answer

A

Explanation

As we know that,
`I= A n eVd`
So current,
`I prop Vd`
And, current (I) also depend on n, the number of free electrons which increases on increasing temperature which makes more collision between electrons and increases resistance or decrease current.